Normal age for period to start?

I havent started my period yet!!
my mom said she started hers at 11 but I havent started it! does this mean theres something wrong with me?or am I just being stupid?

every person starts at different ages it doesnt really matter. It really depends on how develooped you are elsewhere.
I started when I was 14, but my mum statred when she was 9. Dont worry about it, it will happen sometime. But if your really worried, talk to your GP or doctor.

without your age its hard to tell if its normal
however the average age to get a period is around 13
but many people get it either before or after
as young as 10 to as old as 18 even
when you get to about age 16-17 and it hasnt come then you should go to the doctor so he can check if eveything is okay

there isnt a normal age to start
I started at 10 lool
its different for everyone
anyways count urself lucky you havent started yet
it can be very annoying
not to mention the PMT